mybatis一对多查询内层排序问题

最新推荐文章于 2023-10-30 16:39:48 发布

原创最新推荐文章于 2023-10-30 16:39:48 发布 · 2.1w 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#mysql #java #mybatis #spring boot

Mybatis 专栏收录该内容

16 篇文章

订阅专栏

本文详细解析了MyBatis映射文件中用于查询诊断主题、关键绩效指标(KPI)及其维度的具体实现方式，包括ID、名称、类型、计算方法等属性的映射，并介绍了如何通过设置多个排序规则来解决前端页面显示顺序不一致的问题。

<!--根据板块id查询所有主题->指标->维度-->
    <resultMap id="TitleDimensionMap" type="com.etouch.admincenter.bean.ZhmdDiagnosisTitleBean">
        <id column="title_id" property="id"/>
        <result column="title_name" property="titleName"/>
        <collection property="diagnosisKpiBeanList" ofType="com.etouch.admincenter.bean.ZhmdDiagnosisKpiBean">
            <id column="kpi_id" property="id"/>
            <result column="kpi_name" property="kpiName"/>
            <result column="kpi_type" property="kpiType"/>
            <result column="calculate_method" property="calculateMethod"/>
            <result column="is_add_description" property="isAddDescription"/>
            <result column="description_remind" property="descriptionRemind"/>
            <result column="input_description" property="inputDescription"/>
            <result column="kpi_industry_standard" property="kpiIndustryStandard"/>
            <result column="kpi_brand_standard" property="kpiBrandStandard"/>
            <result column="kpi_industry_standard_diff" property="kpiIndustryStandardDiff"/>
            <result column="kpi_brand_standard_diff" property="kpiBrandStandardDiff"/>
            <result column="input_description" property="inputDescription"/>
            <result column="kpi_description" property="kpiDescription"/>
            <collection property="dimensionBeans" ofType="com.etouch.admincenter.bean.ZhmdDiagnosisKpiDimensionBean">
                <id column="kpi_dimension_id" property="id"/>
                <result column="diagnosis_id" property="diagnosisId"/>
                <result column="dimension_name" property="dimensionName"/>
                <result column="dimension_value" property="dimensionValue"/>
            </collection>
        </collection>
    </resultMap>

可设置多个排序规则,这样展示到前端页面时,解决每次打开页面显示顺序都不一样的问题
<select id="getDimensionOneStep" resultMap="TitleDimensionMap">
     select
    zdt.id as title_id,zdt.title_name,
    zdk.id as kpi_id,zdk.kpi_name,zdk.kpi_type,zdk.calculate_method,zdk.is_add_description,zdk.description_remind,zdk.kpi_description,
    zdkd.id as kpi_dimension_id, zdkd.dimension_name,zdd.dimension_value,
    zdkpd.input_description
    from zhmd_diagnosis_title zdt
    left join zhmd_diagnosis_kpi zdk on zdk.diagnosis_title_id = zdt.id
    left join zhmd_diagnosis_kpi_dimension zdkd on zdkd.diagnosis_kpi_id = zdk.id
    left join zhmd_dimension_diagnosis zdd on  zdd.dimension_id = zdkd.id and zdd.diagnosis_id = #{diagnosisId}
    left join zhmd_diagnosis_kpi_problem_desc zdkpd on zdkpd.kpi_id = zdk.id and zdkpd.diagnosis_id =#{diagnosisId}
    where zdt.diagnosis_model_id = #{modelId}
    order by zdt.create_date desc,zdk.create_date desc,zdkd.dimension_sort asc
</select>

postman查询结果